试样缺口组织对P92钢焊缝冲击功的影响  

Influence of Notch Microstructure on Impact Toughness of P92 Steel Weld Metal

作　　者：李文彬[1] 冯砚厅[1] 王庆[1] 郑相锋[1] 

机构地区：[1]河北省电力公司电力科学研究院,河北石家庄050021

出　　处：《热加工工艺》2013年第5期219-220,224,共3页Hot Working Technology

摘　　要：根据对P92钢进行焊接工艺评定时出现的焊缝冲击韧性问题,从标准V型冲击试样的缺口组织方面研究了P92钢焊缝冲击韧性。结果表明,P92钢焊缝冲击韧性随焊缝柱状晶与V型缺口角度的增加而增加,缺口尖端组织晶粒的大小对其焊缝冲击韧性有重要影响。According to the problems of impact toughness of P92 steel weld metal occuring in welding procedure qualification to P92 steel, the impact toughness of P92 steel weld metal was studied from the notch microstructure of standard V type impact specimen. The results show that the impact toughness of P92 steel weld is higher with columnar crystal angle of the notch increasing. The notch microstructure has important influences on the impact toughness of P92 steel weld metal.

关 键 词：P92钢 焊缝 冲击韧性 

分 类 号：TG407[金属学及工艺—焊接]